RU2792192C2 - Loading device for material in form of particles - Google Patents

Abstract

FIELD: loading devices.

SUBSTANCE: method for loading material in the form of particles contains stages, at which the first container with material in the form of particles is installed on the first hole of a loading device. Then, material in the form of particles is moved to the second container. The loading device for loading material in the form of particles contains a case with the first and the second holes, containers, a spike, an exhaust pipe, and an extractor. A sealing gasket is located on the first hole. The second container is made with the possibility of attachment to the case around the second hole, and it is a mixing device. The case is attached to the exhaust pipe. The loading device is attached to the extractor, using the exhaust pipe. The spike protrudes through the first hole.

EFFECT: increase in the safety of overloading and prevention of dust formation during loading.

9 cl, 4 dwg

Description

FIELD OF THE INVENTION

[01] The present invention provides a loading device for loading granular material (material in the form of particles), containing a housing with a first hole and a second hole, in which the seal is located on the first hole. The present invention also provides a mixing device with a loading device according to the invention and a method for loading particulate material using the loading device of the invention.

BACKGROUND OF THE INVENTION

[02] Concrete is used quite widely, especially in the construction industry, and is usually produced by mixing water with granular material such as cement powder and aggregates. Concrete is usually mixed on site in large mixers just before use. Mixing concrete typically involves transferring particulate material from a container, such as a bag or sack, to a mixer. Handling granular material at the construction site in this way creates some problems.

[03] When reloading the particulate material into the mixer, the pouches or bags containing the particulate material need to be moved to the mixer and opened to discharge the contents. Today's granular material transfer methods inevitably generate airborne granular material (dust), resulting in material loss and environmental pollution. Handling particulate material in this manner may also result in dust being inhaled by the operator.

[04] Therefore, it is necessary to provide a method that eliminates one or more of the known disadvantages in the process of reloading granular material.

SUMMARY OF THE INVENTION

[05] The present invention is defined in the appended claims.

[06] In the first aspect, a loading device for loading granular material (material in the form of particles) is provided, containing a housing with a first opening and a second opening, in which a sealing gasket is located on the first opening.

[02] In the second aspect, a mixing device is provided with a loading device of the first aspect of the invention.

[08] In a third aspect, a granular material loading method is provided, comprising the steps of:

A. positioning the first container with the particulate material on the first opening of the loading device of the first aspect; And

b. reloading the granular material into a second container attached to the second opening of the loading device.

[09] Some embodiments of the present invention may provide one or more of the following benefits when handling particulate material:

required efficiency;

the required ease of use;

required security;

the required localization of the granular material;

the required level of environmental impact.

[10] The details, examples, and preferences provided in connection with any one or more of the claimed aspects of the present invention apply equally to all aspects of the present invention. The present invention encompasses any combination of embodiments, examples and preferences described herein, in all their possible variations, unless otherwise specified in this document, or the opposite does not follow from the context.

BRIEF DESCRIPTION OF THE DRAWINGS

[11] Attached to the description of the invention are the figures, which are referenced in the description and shown as follows.

In FIG. 1 shows an example of a boot device of the present invention.

In FIG. 2 shows the assembly of the element, the gasket and the housing through the thrust lug on the housing.

In FIG. 3 shows a loading device with a first container on the first opening and a second container on the second opening.

In FIG. 4 shows a cross-section of the loading device and a tee (T-connection) attached to the chimney.

[11] It is understood that the following description and reference to the figures refer to embodiments of the present invention and do not limit the scope defined by the claims.

DETAILED DESCRIPTION

[13] The present invention provides a loading device for loading particulate material according to the appended claims. The loading device comprises a housing with a first opening and a second opening, with a sealing gasket located on the first opening. The loading device facilitates the transfer of the particulate material from the first container to the second container. For example, the boot device may be positioned between the first container and the second container. In some embodiments, the loading device accommodates a first container of particulate material at a first opening and positions a second container at a second opening. The particulate material in the first container can then be transferred to the second container via the loading device.

[14] In some embodiments, the particulate matter may be selected from the following: lime silicate, calcium silicate, Portland cement, sand, silica, alumina, magnesium oxide, calcium oxide stabilized zirconia, carbides, nitrides, borides, silicates, graphite, amorphous carbon, silicon carbide, aluminum silicates, chromium oxide, or combinations thereof. In some embodiments, the solid particles may have an average size d ₅₀ of less than 5 µm, or less than 4.5 µm, or less than 4.0 µm, or less than 3.5 µm, or less than 3.0 µm, or less than 2.5 µm , or less than 2.0 µm, or less than 1.5 µm. Particle size can be measured using any suitable technique known to those skilled in the art today or disclosed hereinafter. Unless otherwise indicated, particle size and particle size characteristics such as particle size distribution (“psd”) are measured using a Leeds and Northrup Microtrac X100 laser particle size analyzer (Leeds and Northrup, North Wales, Pennsylvania, USA), which can determine particle size distribution for particles ranging in size from 0.12 µm to 704 µm. The size of a given particle is expressed in terms of the diameter of the sphere of equivalent diameter that is deposited through the slurry, also known as the equivalent spherical diameter or “esd”. The median particle size, or d ₅₀ value, is the value at which 50% by weight of the particles have an equivalent static density less than the d ₅₀ value.

[15] In some embodiments, the first container may be a flexible container, such as a bag. The package can be made of plastic or fabric. The package can be open on one side or sealed on all sides. The first container may vary in size. For example, the surface of the first container, mounted on the first opening, may have a diameter of up to 900 mm, which may provide a tight seal to the seal to prevent dust during loading. In some embodiments, the second container may be an agitator such as a concrete agitator, a shotcrete agitator, a high performance paddle agitator, or a free fall agitator. In some embodiments, the agitator may be attached to the housing around the second opening. The agitator can be attached to the second hole with nuts and bolts or screws. In some embodiments, the mixing device is detachable from the loading device. In this case, one boot device can be used with several different mixing devices.

[16] In some embodiments, the first hole is located in the first plane and the second hole is located in the second plane, while the first plane and the second plane can be located at an angle of less than 25° to each other and/or parallel. In some embodiments, the surface area and/or perimeter of the first opening may be less than, equal to, or greater than that of the second opening. The first opening and the second opening may be configured to allow free passage of particulate material from the first container to the second container. The shape of the first and second holes may, independently of each other, be a circle, an oval, or a polygon such as a triangle, square, rectangle, pentagon, hexagon, heptagon, octagon, nonagon, decagon, elevenagon, or dodecagon.

[17] In some embodiments, the seal located on the first opening may be flexible. The sealing gasket may be attached directly to the housing to form the boundary of the first opening. In some embodiments, the seal fills the space between the body and the first container at the first opening. The sealing gasket may form a seal between the body and the first container. The flexible properties of the seal are considered suitable for accommodating first containers of various sizes and/or shapes. In some embodiments, the gasket comprises rubber, silicone, cork, neoprene, nitrile rubber, and/or polytetrafluoroethylene. In some embodiments, the seal may be a ring with an inner radius of about 150 mm, or about 200 mm, or about 250 mm, or about 300 mm. In some embodiments, the seal may be a ring with an internal diameter of about 500 mm. In some embodiments, the seal may be a ring with an outer radius of about 250 mm, or about 300 mm, or about 350 mm. The sealing gasket may have an outer radius the same as the radius of the body of the boot device. In some embodiments, the seal may have a thickness of about 1 mm, or about 2 mm, or about 3 mm, or about 4 mm, or about 5 mm.

[18] In some embodiments, the body may be cylindrical or conical. In some embodiments, the housing comprises aluminum, ductile mild steel, cast iron, steel, stainless steel, carbon fiber, fiber reinforced plastic, and/or lumber. In some embodiments, the body has a height, i. e. the shortest distance between the first hole and the second hole, about 300 mm, or about 350 mm, or about 400 mm, or about 450 mm, or about 500 mm, or about 550 mm, or about 600 mm.

[19] In some embodiments, the implementation of the first hole additionally contains the element, while the sealing gasket is located between the housing and the element. In some embodiments, the body includes a shoulder that defines a boundary around the first opening, and the element can be attached to the body through the shoulder. For example, the element may be attached to the housing shoulder with nuts and bolts or screws. In some examples, the element and the shoulder are rings and the element has an outer radius that is the same as, or 5 mm less than or greater than, or 10 mm less than or greater than the outer radius of the shoulder. In some examples, the element has the same inner radius, or 5 mm less or more, or 10 mm less or more than the inner radius of the thrust ledge. In some embodiments, the seal protrudes between the housing and the element into the first opening. In some embodiments, an area of at least 80 mm ² , or at least 90 mm ² , or at least 100 mm ² , or at least 110 mm ² , or at least 120 mm ^{2 ,} of the gasket protrudes between the housing and the element into the first hole.

[20] In some embodiments, the housing is attached to the exhaust pipe. Without being bound by theory, it is believed that the airborne particulate material is contained in the loading device during the transfer of the particulate material from the first container to the second container. This may be assisted by providing a seal at the first opening between the first container and the seal. By attaching the exhaust pipe to the housing, airborne granular material can be moved to another location.

[21] In some embodiments, the loading device housing is attached to the extractor via an exhaust pipe. The outlet pipe may have a length of about 1 meter, or about 2 meters, or about 3 meters, or about 4 meters, or about 5 meters, or about 7 meters, or about 10 meters, or about 15 meters, or about 20 meters, or about 30 meters. In some embodiments, the extractor includes a dust filter. In some embodiments, the extractor creates a negative pressure vacuum of at least 10 kPa, or at least 15 kPa, or at least 20 kPa, or at least 25 kPa, helping to move the airborne particulate material to another location.

[22] In some embodiments, the exhaust pipe is attached to a tee (T-connection) under the shoulder of the housing. In some embodiments, the implementation of the tee under the thrust ledge of the body is located in the upper half of the body. For example, the tee under the shoulder of the body is located in the upper third of the body, or in the upper quarter of the body. In some embodiments, the surface of the tee closest to the shoulder is set 20 mm below the shoulder, or 25 mm below the shoulder, or 30 mm below the shoulder, or 35 mm below the shoulder, or 40 mm below the shoulder , or 45 mm below the stop lug, or 50 mm below the stop lug, or 55 mm below the stop lug, or 60 mm below the stop lug, or 65 mm below the stop lug, or 70 mm below the stop lug, or 75 mm below the stop lug.

[23] The tee disclosed herein has a single hole bottom that is attached to and is perpendicular to the top of the two hole tee. The two holes in the upper part of the tee are connected to each other end to end. The top of the tee is the position inside the loading device. In some embodiments, the two holes in the top of the tee are directed toward the side wall of the housing. In some embodiments, none of the two openings on the top of the tee point toward the center of the loading device. In some embodiment, the top and bottom of the tee are cylindrical and/or conical.

[24] In some embodiments, the tee is attached to the body of the loading device such that the bottom opening of the tee is located on the outside of the body and the top openings of the tee are located inside the body. In some embodiments, the lower opening of the tee is attached to the outlet pipe such that the two openings of the top of the tee are located inside the boot body. In some embodiments, the top of the tee is secured to the loading device body by welding, screws, or nuts and bolts. In some embodiments, the bottom of the tee is attached to the outlet pipe using a clamp, such as a cam lock or screw lock.

[25] In some embodiments, the lower opening of the tee has a diameter of about 90 mm, or about 100 mm, or about 110 mm, or about 120 mm, or about 130 mm, or about 140 mm, or about 150 mm, or about 160 mm , or about 170 mm, or about 180 mm. In some embodiments, the top openings of the tee are, independently, about 90 mm in diameter, or about 100 mm, or about 110 mm, or about 120 mm, or about 130 mm, or about 140 mm, or about 150 mm, or about 160 mm, or about 170 mm, or about 180 mm. In some embodiments, the bottom of the tee, projecting perpendicularly from the top of the tee, has a length of about 140 mm, or about 130 mm, or about 120 mm, or about 110 mm, or about 100 mm, or about 90 mm, or about 80 mm . In some embodiments, the distance between the two holes of the top of the tee is about 350 mm, or about 340 mm, or about 330 mm, or about 320 mm, or about 310 mm, or about 300 mm, or about 290 mm, or about 280 mm , or about 270 mm, or about 260 mm, or about 250 mm, or about 240 mm. In some embodiments, both top holes have a diameter of about 160 mm, the bottom hole has a diameter of about 100 mm, both projections have a length of about 140 mm, and the distance between the two holes of the top of the tee is about 320 mm.

[26] In some examples, it was observed that the tee mainly ensures the removal of fine, airborne particles through the exhaust pipe. Without being bound by theory, we believe that the shape and positioning of the tee ensures the removal of small, airborne, dust particles, leaving larger, heavier particles in the feeder. In some embodiments, particulate material with a particle size of less than 100 microns, or less than 90 microns, or less than 80 microns, or less than 70 microns, or less than 60 microns, or less than 50 microns, or less than 40 microns is removed through the tee and the outlet pipe. In some embodiments, particulate material larger than 100 microns remains in the feeder. In some embodiments, the tee is free of filters.

[27] In some embodiments, the top of the tee is located inside the body of the boot device, under the thrust ledge, in the upper half of the body, with the top of the tee located inside the boot device, and two holes of the top of the tee are directed towards the side wall of the body.

[28] In some embodiments, the particulate material collected in the extractor is reused.

[29] In some embodiments, a spike extends through the first hole. The spike may be attached to the body at two or more points. In some instances, the spike may assist in reloading the particulate material by allowing the operator to place the unopened first container directly onto the first opening of the loading device. In some examples, the spike pierces the first container as it is placed on the first opening, allowing the contents to enter the loading device. The first container can be installed on the first opening of the loading device using a forklift. When the first container is placed over the first opening, the position and shape of the loading device may also block convenient access to the first container while preventing an operator from inserting a hand and/or palm into the loading device. This may serve to protect the operator from possible injury that may be caused by inserting a hand and/or palm into the loading device and/or the second container.

[30] In some embodiments, a boot device may have one or more of the following effects:

localization of airborne granular material;

safely transferring the particulate material from the first container to the second container;

more environmentally friendly use of granular material;

creating a reusable device;

providing a flexible device capable of adapting to different first containers and/or second containers with different sizes and shapes

prevention of risks of trapping the hand and palm;

preventing the risk of human exposure to airborne granular material;

selective removal of airborne granular material.

EXAMPLES

[31] FIG. 1 shows an example of a loading device 1 in which the body 2 has a first opening 3 and a second opening 4 (not shown). The housing is attached to the element 6 by nuts 10 and bolts (not shown), between which a sealing gasket 3 is fixed.

[32] The example shown in FIG. 1 further comprises an outlet pipe 8 and an extractor 9, the housing 2 being attached to the extractor 9 via the outlet pipe 8. In the example of FIG. 1 also shows a spike 11 which protrudes from the first hole 3.

[33] FIG. 2 shows an example of an assembly of element 6, sealing gasket 5 and housing 2. Element 6 is attached to housing 2 through a thrust lug 7 with nuts 10 and bolts (not shown) fixing gasket 5 between them.

[34] FIG. 3 shows an example of a loading device 1 in which a first container 12 is mounted on a first opening (not shown) and a second container 13 is attached to a second opening (not shown) of the loading device.

[35] FIG. 4 is a sectional view of the loading device 1 from above, in which the tee 14 is attached to the loading device 1 and the outlet pipe 8. The upper part of the tee 14 is located inside the loading device 1 and is attached to the body 2. loading device 1. The bottom hole 14a of the tee is attached to the outlet pipe 8.

[36] For the avoidance of doubt on the numbered claims, the present application is directed to the subject matter described in the following numbered claims.

1. Loading device (1) for loading granular material, containing a housing (2) with a first hole (3) and a second hole (4), in which the sealing gasket (5) is located on the first hole (3).

2. The loading device (1) according to the numbered item 1, additionally containing an element (6), in which the sealing gasket (5) is located between the housing (2) and the element (6).

3. The loading device (1) according to the numbered item 1 or the numbered item 2, in which the body (2) contains a stop ledge (7) that forms a border around the first opening (3).

4. Loading device (1) according to any previous numbered item, in which the element (6) is attached to the body (2), preferably through a thrust ledge (7).

5. Loading device (1) according to any previous numbered paragraph, in which the sealing gasket (5) is flexible.

6. Loading device (1) according to any previous numbered item, in which the sealing gasket (5) contains rubber, silicone, cork, neoprene, nitrile rubber and / or polytetrafluoroethylene.

7. The loading device (1) according to any previous numbered item, in which the first hole (3) is located in the first plane, and the second hole (4) is located in the first plane, while the first plane and the second plane are located at an angle of less than 25° to each other.

8. Loading device (1) according to any previous numbered paragraph, in which part of the body (2) is cylindrical or conical.

9. The loading device (1) according to any previous numbered item, in which the body (2) contains aluminum, malleable mild steel, cast iron, steel, stainless steel, carbon fiber, fiber reinforced plastic and / or lumber.

10. Boot device (1) according to any previous numbered paragraph, in which the housing (2) is attached to the outlet pipe (8).

11. Boot device (1) according to any previous numbered claim, in which the boot device (1) is attached to the extractor (9) through the outlet pipe (8).

12. Boot device (1) according to numbered item 10 or numbered item 11, containing a tee (14) with two upper holes (14b and 14c) inside the boot device (1) and a lower hole (14a) outside the boot device (1) , while the bottom hole (14a) is attached to the outlet pipe (8).

13. The loading device (1) according to the numbered item 12, in which the tee (14) is located in the upper half of the body (2) under the stop ledge (7), which forms a border around the first hole (3).

14. Loading device (1) according to numbered item 12 or numbered item 13, in which the upper part of the tee (14) is attached to the body (2), with two holes (14b and 14c) directed to the side wall of the body (2) .

15. Boot device (1) according to any previous numbered item, in which the spike (11) protrudes through the first hole (3).

16. Boot device (1) according to any previous numbered item, in which the spike (11) is attached to the body (2).

17. Loading device (1) according to any previous numbered paragraph, in which the second container (12) can be attached to the body (2) around the second opening (4).

18. The loading device (1) according to the numbered claim 17, in which the second container (12) is a mixing device.

19. The loading device (1) according to the numbered item 18, in which the mixing device is a shotcrete mixing device.

20. Loading device (1) according to any previous numbered item, in which solid particles are selected from the following: lime silicate, calcium silicate, Portland cement, sand, silicon oxide, aluminum oxide, magnesium oxide, calcium oxide stabilized zirconia, carbides, nitrides , borides, silicates, graphite, amorphous carbon, silicon carbide, aluminum silicates, chromium oxide, or combinations thereof.

21. Stirring device with a boot device (1) according to any of the numbered paragraphs. 1-20.

22. A method for loading a granular material, comprising the steps of:

A. install the first container (12) with granular material on the first opening (3) of the loading device (1) according to any of the numbered paragraphs. 1-20; And

b. the granular material is reloaded into the second container (13) attached to the second opening (4) of the loading device.

23. The method according to the numbered claim 22, wherein the first container (13) is a package.

24. The method according to the numbered claim 22 or the numbered claim 23, in which the second container (12) is a mixing device.

REFERENCE POSITIONS

1. Boot device

2. Housing

3. First hole

4. Second hole

5. Sealing gasket

6. Item

7. Thrust lug

8. Exhaust pipe

9. Extractor

10. Nuts and bolts

11. Spike

12. First container

13. Second container

14. Tee (T-connection) (14a - bottom hole, 14b and 14c - top hole)

Claims (14)

1. Loading device (1) for loading material in the form of particles, containing a housing (2) with a first hole (3) and a second hole (4), in which the sealing gasket (5) is located on the first hole (3), and the second container (13) is configured to be attached to the body (2) around the second hole (4), the specified boot device (1) additionally contains a spike (11), characterized in that the loading device (1) contains an outlet pipe (8) and an extractor (9), wherein said second container (13) is a mixing device, wherein the housing (2) is attached to said outlet pipe (8), wherein the loading device (1) is attached to said extractor (9) by means of said outlet pipe (8), and when this specified spike (11) protrudes through the first hole (3). 2. The loading device (1) according to claim 1, additionally containing an element (6), in which the sealing gasket (5) is located between the housing (2) and the element (6). 3. Boot device (1) according to any one of paragraphs. 1, 2, in which the body (2) contains a thrust ledge (7) which forms a border around the first hole (3). 4. Loading device (1) according to any one of the preceding claims, in which the element (6) is attached to the body (2), preferably by means of a thrust lug (7). 5. A loading device (1) according to any one of the preceding claims, wherein the seal (5) is flexible. 6. Loader (1) according to any one of the preceding claims, wherein the seal (5) comprises rubber, silicone, cork, neoprene, nitrile rubber and/or polytetrafluoroethylene. 7. A loading device (1) according to any of the preceding claims, wherein the agitator is a shotcrete agitator. 8. Feeder (1) according to any of the preceding claims, wherein the solid particles are selected from the following: lime silicate, calcium silicate, Portland cement, sand, silica, alumina, magnesium oxide, calcium oxide stabilized zirconia, carbides, nitrides , borides, silicates, graphite, amorphous carbon, silicon carbide, aluminum silicates, chromium oxide, or combinations thereof. 9. A method for loading material in the form of particles, comprising the steps of: A. install the first container (12) with particulate material on the first opening (3) of the loading device (1) according to any one of paragraphs. 1-8; And b. moving the material in the form of particles into the second container (13) attached to the second opening (4) of the loading device (1).

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